<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>祝福墙</title>
    <style>
        .main{
            width: 800px;
            height: 500px;
            margin: 0px auto;
            border: 3px solid yellow;

        }

        /*.clearfix::before,*/
        /*.clearfix::after{*/
        /*    content: '';*/
        /*    display: table;*/
        /*    clear: both;*/
        /*}*/

        .left{
            position: absolute;
            float: left;
        }
        .note_left{
            border: 1px dashed yellow;
            width: 180px;
            height: 250px;
            font-size: 50px;
        }
        #note1{
            background-color: blue;

        }
        #note2{
            background-color: yellowgreen;
            position: absolute;
            top: 30px;
            left: 30px;
        }
        #note3{
            background-color: #CED388;
            position: absolute;
            top: 60px;
            left: 60px;
        }
        .right{
            float: left;
            position: absolute;
        }
        .right h1{
            position: absolute;
            width: 100px;
            left: 300px;
        }
        #note_4{
            position: absolute;
            left: 500px;
            top: 118px;
            background-color: #F9D5C2;
        }
        #note_5{
            position: absolute;
            left: 520px;
            top: 100px;
            background-color: #75A9BD;

        }

    </style>
</head>
<body>
    <div class="main clearfix">
        <div class="left">
        <div class="note_left" id="note2">2</div>
        <div class="note_left" id="note3">3</div>
        <div class="note_left" id="note1">1</div>

        </div>
        <div class="right">
    <h1>
        祝福墙
    </h1>
            <div class="note_left" id="note_4">4</div>
            <div class="note_left" id="note_5">5</div>
        </div>

    </div>
</body>
</html>